\noindent 
\begin{tabular}{|p{1.5in}|p{3.5in}|p{0.5in}|p{0.5in}|}
\cline{1-4}
\texttt{disksim\_pf\_stats} & \texttt{Print per-process stats} & int & required \\ 
\cline{1-4}
\end{tabular}\\ 
\noindent 
\begin{tabular}{|p{1.5in}|p{3.5in}|p{0.5in}|p{0.5in}|}
\cline{1-4}
\texttt{disksim\_pf\_stats} & \texttt{Print per-CPU stats} & int & required \\ 
\cline{1-4}
\end{tabular}\\ 
\noindent 
\begin{tabular}{|p{1.5in}|p{3.5in}|p{0.5in}|p{0.5in}|}
\cline{1-4}
\texttt{disksim\_pf\_stats} & \texttt{Print all interrupt stats} & int & required \\ 
\cline{1-4}
\end{tabular}\\ 
\noindent 
\begin{tabular}{|p{1.5in}|p{3.5in}|p{0.5in}|p{0.5in}|}
\cline{1-4}
\texttt{disksim\_pf\_stats} & \texttt{Print sleep stats} & int & required \\ 
\cline{1-4}
\end{tabular}\\ 
